CN212137313U - Safe intelligent charging cabinet for testing instrument - Google Patents

Safe intelligent charging cabinet for testing instrument Download PDF

Info

Publication number
CN212137313U
CN212137313U CN202020730115.7U CN202020730115U CN212137313U CN 212137313 U CN212137313 U CN 212137313U CN 202020730115 U CN202020730115 U CN 202020730115U CN 212137313 U CN212137313 U CN 212137313U
Authority
CN
China
Prior art keywords
wireless
cabinet
temperature
charging
charging cabinet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202020730115.7U
Other languages
Chinese (zh)
Inventor
黄继来
李矗
林志明
李武
高强
周震宇
黄加佳
许璞轩
刘冲
朱翘楚
周鹿鸣
雷欢
易永利
叶丰
刘茂集
经纲亮
叶正策
叶隆
周辽
颜军敏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Corp of China SGCC
State Grid Zhejiang Electric Power Co Ltd
Wenzhou Power Supply Co of State Grid Zhejiang Electric Power Co Ltd
Original Assignee
State Grid Corp of China SGCC
State Grid Zhejiang Electric Power Co Ltd
Wenzhou Power Supply Co of State Grid Zhejiang Electric Power Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by State Grid Corp of China SGCC, State Grid Zhejiang Electric Power Co Ltd, Wenzhou Power Supply Co of State Grid Zhejiang Electric Power Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN202020730115.7U priority Critical patent/CN212137313U/en
Application granted granted Critical
Publication of CN212137313U publication Critical patent/CN212137313U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Fire Alarms (AREA)

Abstract

The utility model discloses a safe intelligent charging cabinet of test instrument, the intelligent charging cabinet comprises a cabinet body, the cabinet door with install at the internal wireless wifi socket of cabinet, wireless temperature and humidity sensor, wireless smoke transducer, temperature and humidity adjusting device and wireless AP, wireless wifi socket, wireless temperature and humidity sensor, wireless smoke transducer all is through wireless network connection to wireless AP, temperature and humidity adjusting device is connected with wireless wifi socket electricity, wireless AP passes through wireless network connection to control center, control center is connected with the early warning ware, still including setting up automatic gas fire extinguisher and the at least a set of support in the cabinet is internal, every group support includes two piece at least horizontal poles that are located same horizontal plane, be equipped with the passageway of putting out a fire between the adjacent horizontal pole, substance can pass through in order to guarantee automatic gas fire extinguisher. Through the charging cabinet, functions of automatic control charging and power-off, automatic adjustment of charging environment, remote monitoring, early warning and the like can be realized, the charging efficiency is improved, the service life of the battery is prolonged, and the potential safety hazard is reduced.

Description

Safe intelligent charging cabinet for testing instrument
Technical Field
The utility model relates to a power equipment field especially relates to test instrument safety intelligent charging cabinet.
Background
A large amount of detection equipment is needed in the electrical test work, and a battery is used as a power supply of the detection equipment, such as an insulation resistance meter, a capacitance and inductance tester, a grounding grid conduction tester and the like. Because the use demand is great, most equipment need be put into use when working in daytime, therefore generally utilize night rest time to charge for this type of equipment. Generally, equipment is connected with a common power supply before work, and the power supply is disconnected after work the next day, so that the equipment is continuously charged all night without supervision, electric energy is wasted, the service life of a battery is influenced, even safety accidents caused by battery explosion are caused, especially in high-temperature or humid areas, and therefore, the problem that a good and safe charging environment is provided for an electrical test instrument is urgently needed to be solved.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a can automatic control fill the power off, automatically regulated charging environment, automatic fire extinguishing have remote monitoring function's cabinet that charges concurrently.
In order to solve the technical problem, the utility model adopts the following technical scheme: test instrument safety intelligence cabinet that charges, the intelligent cabinet temperature adjusting device comprises a cabinet body, the cabinet door with install the internal wireless wifi socket of cabinet, wireless temperature and humidity sensor, wireless smoke transducer, temperature and humidity adjusting device and wireless AP, wireless wifi socket, wireless temperature and humidity sensor, wireless smoke transducer all is through wireless network connection to wireless AP, temperature and humidity adjusting device is connected with wireless wifi socket electricity, wireless AP passes through wireless network connection to control center, control center is connected with early warning ware, still including setting up in the internal automatic gas fire extinguisher of cabinet and at least a set of support, every group support includes two piece at least horizontal poles that are located same horizontal plane, be equipped with the passageway of putting out a fire between the adjacent horizontal pole, can pass through with the material of putting out a fire in guaranteeing.
Preferably, the inner walls of the two sides of the cabinet body are provided with slide rails located on the same horizontal plane, each slide rail is provided with a slide groove with an upward opening, the two ends of each cross rod are respectively and fixedly connected with a slide block, and the slide blocks are arranged in the slide grooves in a sliding manner. Therefore, the distance between the cross rods can be adjusted by sliding the cross rods so as to adapt to the test instruments to be charged with different sizes.
Preferably, the device further comprises two groups of pressing devices, each group of pressing devices comprises a fixing part, a connecting rod, a pressing rod and a tension spring, and the pressing rod is positioned above the sliding rail and is parallel to the sliding rail; one end of each connecting rod is hinged with the corresponding pressure rod, the other end of each connecting rod is hinged with the corresponding fixing piece, the fixing pieces are fixedly arranged on the side wall of the cabinet body, the number of the fixing pieces is at least two, and the number of the connecting rods is the same as that of the fixing pieces; the both ends of depression bar are fixedly connected with the extension spring respectively, and the bottom and the slide rail fixed connection of extension spring. The depression bar upwards rotates like this, can slide the interval between the horizontal pole adjustment horizontal pole, and the depression bar rotates downwards can compress tightly the horizontal pole of having adjusted the interval, can guarantee under the effect of depression bar self gravity and extension spring pull that the horizontal pole can not slide again, can guarantee like this that the instrument's of waiting to charge stability and security of placing on the horizontal pole.
Preferably, the control center is connected to the handheld mobile terminal through a wireless network. Therefore, the charging condition can be checked by the staff through the handheld mobile terminal at any time, and the mobile charging terminal is convenient and fast to use.
Preferably, the lower part of the cabinet body is provided with a roller. On the one hand, the charging cabinet is convenient to move, on the other hand, the charging cabinet can be isolated from the ground, and moisture is avoided to a certain extent.
Preferably, the cabinet door is provided with a transparent window. The charging condition can be conveniently checked by workers from the outside of the window.
Preferably, the transparent window is made of explosion-proof flame-retardant organic glass. Has a barrier effect when the battery explodes.
Preferably, the temperature and humidity adjusting device is an air conditioner. The air conditioner is provided with an intelligent operating system, is convenient to be connected into a network for automatic control, has the functions of refrigeration, heating and dehumidification, and can adjust the temperature and humidity in the cabinet.
After the technical scheme is adopted, the utility model discloses following beneficial effect has:
1. whether wireless wifi socket accessible detects rechargeable battery's voltage curve automatic judgement is full of the electricity, and after voltage is in succession a period no longer changes, wireless wifi socket judges that the instrument and equipment has been full of the electricity, and automatic disconnection stops to charge, saves the electric energy and also prolongs battery life.
2. The wireless temperature and humidity sensor and the wireless wifi socket are connected with the wireless AP through a wireless network, the temperature and the humidity in the cabinet can be monitored through the wireless temperature and humidity sensor, the wireless wifi socket is controlled to be switched on or switched off by setting the highest and the lowest temperature value and humidity value, and then the temperature and humidity in the cabinet can be adjusted by controlling the temperature and humidity adjusting device to be started or closed. Therefore, the temperature and the humidity suitable for charging are created in the charging cabinet, the charging efficiency is improved, and the safety of the electrical equipment is protected.
3. The wireless smoke sensor is connected to the wireless AP through a wireless transmission network, the wireless AP is connected to the control center through a wireless network, the control center is connected with the early warning device, when the battery explodes, the wireless smoke sensor sends a signal to reach the control center, and remote monitoring and early warning of the charging cabinet can be achieved.
4. The automatic gas fire extinguisher can automatically spray extinguishing gas to extinguish fire when detecting fire, and eliminates danger as soon as possible.
5. The support can be used for placing the test instrument of waiting to charge, but the horizontal pole of adjustable interval can be according to the big or small adjustment interval of the test instrument of waiting to charge, and closing device can compress tightly the horizontal pole and make horizontal pole rigidity, can be stable place the different volume size test instrument of waiting to charge. And because the intervals are reserved between the adjacent cross rods, between the cross rods and the cabinet door and between the cross rods and the rear wall of the cabinet body when a fire disaster happens, the fire extinguishing channel which can ensure the fire extinguishing substance in the automatic gas fire extinguisher to pass through is formed at intervals, and the effect of the automatic gas fire extinguisher cannot be influenced.
Drawings
FIG. 1 is a schematic view of the interior of the present invention;
FIG. 2 is an external view of the present invention;
FIG. 3 is a schematic block diagram of the present invention;
FIG. 4 is a top view of the middle frame and the slide rail of the present invention;
fig. 5 is a schematic view of a pressing device of the present invention;
fig. 6 is a side view of the middle pressing device of the present invention.
Wherein: 1. the intelligent fire-fighting cabinet comprises a cabinet body, 2 a cabinet door, 3 an automatic gas fire extinguisher, 4 a wireless wifi socket, 5 a wireless AP, 6 a control center, 7 a wireless temperature and humidity sensor, 8 a temperature and humidity adjusting device, 9 a wireless smoke alarm, 10 a to-be-charged test instrument, 11 a cross rod, 111 a sliding block, 12 a sliding rail, 13 a pressing device, 131 a fixing piece, 132 a connecting rod, 133 a pressing rod, 134 a tension spring, 14 a handheld mobile terminal, 15 a roller, 16 a perspective window, 17 a fire-fighting channel and 18 a pre-warning device.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
As shown in figures 1 to 4, the safe and intelligent charging cabinet for the testing instrument comprises a cabinet body 1, a cabinet door 2, an automatic gas fire extinguisher 3 installed in the cabinet body 1, a wireless wifi socket 4, a wireless AP5, a wireless temperature and humidity sensor 7, a temperature and humidity adjusting device 8, a wireless smoke sensor 9, a support, a sliding rail 12, a roller 15 and a transparent window 16. The support is used for placing the test instrument 10 of waiting to charge, and the support includes two horizontal poles 11 that are in same horizontal plane, leaves certain interval between the adjacent horizontal pole 11 and forms the passageway 17 of putting out a fire, can be according to the interval between the adjacent horizontal pole 11 of the size adjustment of the test instrument 10 of waiting to charge, but will guarantee that the material of putting out a fire can pass through in the automatic gas fire extinguisher 3, and horizontal pole 11 has two at least. As shown in fig. 1, in this embodiment, the inner walls of the two sides of the cabinet body 1 are further provided with slide rails 12 located on the same horizontal plane, each slide rail 12 has a slide slot with an upward opening, two ends of the cross bar 11 are respectively and fixedly connected with a slide block 111, in this embodiment, the cross bar 11 and the slide block 111 are integrally formed, and the slide blocks 111 are slidably disposed in the slide slots.
The cabinet body 1 and 2 swing joint of cabinet door, install perspective window 16 on the cabinet door 2, but perspective window 16 best adopts explosion-proof fire-retardant organic glass, can prevent the calamity to enlarge when the conflagration accident takes place, and 1 bottom surface mounting of the cabinet body has gyro wheel 15, conveniently charges cabinet shift position on the one hand, and on the other hand can keep apart the cabinet that charges and ground, avoids moist to a certain extent. The automatic gas fire extinguisher 3 is arranged at the bottom in the cabinet body 1, and can also be suspended at the top in the cabinet body 1 by adopting a suspension type automatic gas fire extinguisher. The wireless wifi socket 4, the wireless temperature and humidity sensor 7 and the wireless smoke sensor 9 are connected to the wireless AP5 through a wireless network; the temperature and humidity adjusting device 8 is electrically connected with the wireless wifi socket 4; the wireless AP5 is connected to the control center 6 through a wireless network, and the control center 6 is connected with the early warning device 18 and the handheld mobile terminal 14.
The following describes the process of charging the testing instrument by using the safe and intelligent charging cabinet for testing instrument of this embodiment, and the handling method when an explosion accident occurs in the battery.
When needs charge to the test instrument, open cabinet door 2, will wait to charge on the test instrument 10 puts into the support of the cabinet body 1 to charge on being connected to wireless wifi socket 4, horizontal pole 11 can slide in slide rail 12, can be according to the interval 17 between the big or small adjustment horizontal pole 11 of waiting to charge test instrument 10 when placing. Whether the voltage curve of battery is full of electricity in the test instrument 10 of waiting to charge is judged automatically to wireless wifi socket 4 accessible detection, and after voltage no longer changed for a period in succession, wireless wifi socket 4 judges that the battery has been full of electricity, and automatic disconnection stops charging. This saves power and prolongs battery life.
When the temperature in the cabinet body 1 exceeds or is lower than a set value, the wireless temperature and humidity sensor 7 monitors temperature abnormity, signals are transmitted to the wireless wifi socket 4 through the wireless AP5, the wireless wifi socket 4 is connected with the temperature and humidity adjusting device 8, and the temperature and humidity adjusting device 8 is started to adjust the temperature in the cabinet. The temperature and humidity adjusting device 8 is preferably an air conditioner because the air conditioner has high cooling and heating efficiency and can be directly connected to a network. After the wireless temperature and humidity sensor 11 monitors that the temperature in the cabinet body 1 is proper, the signal is transmitted to the wireless wifi socket 4 again, the wireless wifi socket 4 is closed to be connected with the temperature and humidity adjusting device 8, and the temperature and humidity adjusting device 8 is closed. Therefore, a good charging environment can be created by adjusting the temperature in the cabinet, the charging efficiency is improved, and the service life of the battery is prolonged.
When the humidity in the cabinet body 1 exceeds a set value, the wireless temperature and humidity sensor 7 monitors that the humidity is abnormal, the wireless AP5 transmits a signal to the wireless wifi socket 4, the wireless wifi socket 4 is connected with the temperature and humidity adjusting device 8, and the humidity adjusting device 8 starts to dehumidify. The temperature and humidity control device 8 is preferably an air conditioner because the air conditioner has high dehumidification efficiency and can be directly connected to a network. After the wireless temperature and humidity sensor 7 monitors that the humidity in the cabinet body 1 is suitable, the signal is transmitted to the wireless wifi socket 4 again, the wireless wifi socket 4 is closed to be connected with the temperature and humidity adjusting device 8, and the temperature and humidity adjusting device 8 is closed. Therefore, the humidity in the adjusting cabinet can create a good charging environment, the charging efficiency is improved, and the service life of the battery is prolonged.
When the battery explodes, the cabinet body 1 can play a role in blocking, so that the fire is prevented from further expanding, and the loss is reduced to the minimum. On one hand, the automatic gas fire extinguisher 3 automatically sprays out fire extinguishing gas for fire extinguishing at the first time when detecting fire, and the fire extinguishing gas can be efficiently sprayed to a fire point to extinguish fire as soon as possible due to the fire extinguishing channel 17 arranged between the cross rods 11; on the other hand, the wireless smoke sensor 9 monitors abnormality, signals are transmitted to the wireless wifi socket 4 and the control center 6 through the wireless AP5, the wireless wifi socket 4 immediately closes all connections after receiving the signals to stop charging the testing instrument, and after the control center 6 receives the signals, the connected early warning device 18 sends out early warning to timely remind workers of on-site processing. The method of automatic fire extinguishing, automatic power off and timely early warning is adopted, and the harm of battery explosion is reduced to the minimum as possible.
Example two: the present embodiment is different from the above-mentioned embodiments in that a set of pressing devices 13 is respectively disposed above the two side sliding rails 12 in the present embodiment, as shown in fig. 5 and fig. 6, each set of pressing devices 13 includes a fixing member 131, a connecting rod 132, a pressing rod 133 and a tension spring 134, the fixing member 131 is fixedly mounted on the side wall of the cabinet 1, and the fixing member 131 can be fixedly connected to the side wall of the cabinet 1 by welding or bolt fastening. One end of the connecting rod 132 is hinged to the fixing member 131, and the other end of the connecting rod 132 is hinged to the pressing rod 133, wherein there are at least two fixing members 131, the number of the connecting rods 132 is the same as that of the fixing members, and the number of the fixing members 131 and the number of the connecting rods 132 adopted in the embodiment are 3 respectively, so that the purpose that the pressing rod 133 rotates around the fixing members 131 through the connecting rod 132 can be achieved.
As shown in fig. 6, two ends of the pressing rod 133 are respectively and fixedly connected with a tension spring 134, a bottom end of the tension spring 134 is fixedly connected with the slide rail, in this embodiment, small holes are respectively formed on the pressing rod 133 and the slide rail 12, and two ends of the tension spring 134 are hung on the small holes to realize the fixed connection.
Based on the above distinguishing technical features, when the testing instrument is charged by using the safe and intelligent charging cabinet for testing instruments of the present embodiment, one end of the pressing rod 133 is held by hand to turn up the pressing rod 133, as shown by the dotted line in fig. 6, the pressing rod 133 is turned up (at this time, the tension spring is elongated, not shown in the figure), and then the cross rods 11 can be slid, and the distance between the adjacent cross rods 11 can be adjusted according to the size of the testing instrument 10 to be charged. After adjustment, one end of the pressing rod 133 is held by a hand to rotate the pressing rod 133 downwards, the gravity of the pressing rod 133 and the tensile force of the tension spring 134 are utilized to enable the pressing rods 133 on the two sides in the cabinet body 1 to be tightly pressed at the two ends of the cross rod 11, and then the to-be-charged test instrument 10 is placed on the cross rod 11. As shown in fig. 5 and 6, in the state that the pressing rod 133 presses the cross rod 11, the cross rod 11 cannot slide any more, so that the falling of the to-be-charged testing instrument 10 caused by the accidental sliding of the cross rod 11 can be prevented, the potential safety hazard is eliminated, and the stability of the to-be-charged testing instrument 10 in the charging process is ensured.
The pressing device 13 provided in this embodiment also has the following advantages: the extension spring 134 that depression bar 133 both ends fixed connection has limited the home range of horizontal pole 11, and horizontal pole 11 all has certain interval apart from the rear wall of cabinet door 2 and cabinet body 1 like this, the interval just forms the passageway 17 of putting out a fire, can supply the fire extinguishing material to pass through in the automatic gas fire extinguisher 3, guarantees not to influence when taking place the fire incident like this and puts out a fire.
The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto, and any person skilled in the art can make changes or modifications within the scope of the present invention.

Claims (8)

1. Test instrument safety intelligence cabinet that charges, including the cabinet body, cabinet door and install at internal wireless wifi socket of cabinet, wireless temperature and humidity sensor, wireless smoke transducer, its characterized in that: the wireless temperature and humidity adjusting device is electrically connected with the wireless wifi socket, the wireless AP is connected to a control center through a wireless network, and the control center is connected with an early warning device;
still including setting up in the internal automatic gas extinguisher and at least a set of support of cabinet, every group the support includes that two at least horizontal poles that are located same horizontal plane are equipped with the passageway of putting out a fire between the adjacent horizontal pole to guarantee that the material of putting out a fire can pass through in the automatic gas extinguisher.
2. The testing instrument safety intelligent charging cabinet of claim 1, wherein: the cabinet body is characterized in that sliding rails located on the same horizontal plane are installed on the inner walls of the two sides of the cabinet body, each sliding rail is provided with a sliding groove with an upward opening, two ends of each transverse rod are respectively and fixedly connected with sliding blocks, and the sliding blocks are arranged in the sliding grooves in a sliding mode.
3. The testing instrument safety intelligent charging cabinet of claim 2, wherein: the pressing device comprises a fixing piece, a connecting rod, a pressing rod and a tension spring, wherein the pressing rod is positioned above the sliding rail and is parallel to the sliding rail;
one end of each connecting rod is hinged to the corresponding pressure rod, the other end of each connecting rod is hinged to the corresponding fixing piece, the fixing pieces are fixedly mounted on the side wall of the cabinet body, the number of the fixing pieces is at least two, and the number of the connecting rods is the same as that of the fixing pieces;
the two ends of the pressure lever are respectively and fixedly connected with a tension spring, and the bottom end of the tension spring is fixedly connected with the slide rail.
4. The test instrument secure smart charging cabinet of any one of claims 1 to 3, wherein: the control center is connected to the handheld mobile terminal through a wireless network.
5. The test instrument secure smart charging cabinet of any one of claims 1 to 3, wherein: the outer surface of the bottom of the cabinet body is provided with rollers.
6. The test instrument secure smart charging cabinet of any one of claims 1 to 3, wherein: the cabinet door is provided with a transparent window.
7. The testing instrument safety intelligent charging cabinet of claim 6, wherein: the transparent window is made of explosion-proof flame-retardant organic glass.
8. The test instrument secure smart charging cabinet of any one of claims 1 to 3, wherein: the temperature and humidity adjusting device is an air conditioner.
CN202020730115.7U 2020-05-06 2020-05-06 Safe intelligent charging cabinet for testing instrument Active CN212137313U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202020730115.7U CN212137313U (en) 2020-05-06 2020-05-06 Safe intelligent charging cabinet for testing instrument

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202020730115.7U CN212137313U (en) 2020-05-06 2020-05-06 Safe intelligent charging cabinet for testing instrument

Publications (1)

Publication Number Publication Date
CN212137313U true CN212137313U (en) 2020-12-11

Family

ID=73693664

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202020730115.7U Active CN212137313U (en) 2020-05-06 2020-05-06 Safe intelligent charging cabinet for testing instrument

Country Status (1)

Country Link
CN (1) CN212137313U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113162140A (en) * 2021-03-16 2021-07-23 国网浙江省电力有限公司温州供电公司 Safe charging cabinet and charging method for electric power instrument

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113162140A (en) * 2021-03-16 2021-07-23 国网浙江省电力有限公司温州供电公司 Safe charging cabinet and charging method for electric power instrument

Similar Documents

Publication Publication Date Title
CN210460079U (en) Energy storage container
CN212137313U (en) Safe intelligent charging cabinet for testing instrument
CN109289136A (en) A kind of rail traffic lithium battery automatic fire extinguishing system
CN111211498A (en) Intelligent alternating-current low-voltage power distribution cabinet
CN104617495A (en) Outdoor cabinet anti-condensation device and control method thereof
CN113555797A (en) Flood post-disaster relief mobile substation with moisture-proof function
CN108279042A (en) A kind of environmental detection set
CN209286539U (en) A kind of rail traffic lithium battery automatic fire extinguishing system
CN212208507U (en) Fill electric pile conflagration monitoring device
CN109215281A (en) A kind of communication base station fire alarm installation
CN115770370A (en) Fire extinguishing system for inhibiting fire explosion of energy storage power station
CN112003366B (en) Quick maintenance system of fire control linkage power
CN205541258U (en) A fire alarm device for transformer substation
CN206789896U (en) A kind of combined intelligent low-voltage distribution cabinet
CN114024221A (en) Energy storage system prefabricated cabin explosion-proof system
CN209852099U (en) Trade battery case and use monitored control system based on thing networking
CN208081682U (en) A kind of power distribution cabinet group configured with fire prevention system
CN207853378U (en) A kind of terminal box
CN206347694U (en) A kind of intelligent ventilation energy-saving device for switchgear house
CN205543729U (en) High tension switchgear with detect function with electricity
CN213484362U (en) Ring main unit with online monitoring function
CN215267278U (en) Automatic processing device for distribution box faults
CN215989696U (en) Automatic alarm protection device for electrical automation of power distribution equipment
CN109544848A (en) A kind of Internet of Things electrical fire warning device convenient for safeguarding
CN219177555U (en) Emergency lighting equipment

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant